Miss this, and the government can stake a legal claim to your home, wages, bank accounts, business property, and even money from a settlement before you fully grasp what happened. A federal tax lien is the IRS's claim against everything a taxpayer owns, and everything later acquired, after taxes are assessed, a bill is sent, and the debt is not paid. It arises by law under Internal Revenue Code § 6321, and the IRS may then file a public Notice of Federal Tax Lien to alert creditors that its interest exists.

That filing can wreck borrowing power, complicate a home sale, and put other creditors on notice that the IRS may get paid first. A lien is different from a levy: the lien secures the government's claim, while a levy is the actual seizure of property or funds. The longer it sits, the harder it can be to refinance, sell assets, or negotiate from a strong position. Fast action may allow installment agreement, offer in compromise, withdrawal, discharge, or subordination options.

For an injury claim, a federal tax lien can attach to settlement proceeds if the taxpayer has a legal right to that money. In Michigan, that can matter in auto-injury cases involving the state's complex personal injury protection (PIP) system under the Michigan No-Fault Act, as well as third-party claims. A pending settlement should trigger immediate review of lien priority, exemptions, and payoff strategy before funds are distributed.